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UAF/UVF
   
    Features
 
  • Digital setup for PT, CT ratio and auto range scale
  • AC true RMS conversion
  • Wide auxiliary power range AC / DC 30-250V
  • High over capability
  • High accuracy of 0.2%
  • 4-1/2 digits
  • Display with super rate LED
 
 
 
Specification
  • Input range
    • UAF : 0-6A AC, 40-70Hz, suitable for 5A, 1A rating
    • UVF : 0-150V AC, 40-70HZ
  • Accuracy (23 + 3°C)
    • 0.2% fs, AC true RMS conversion
  • Digits & counts
    • 4-1/2 digits -1999.9 counts maximum
  • Display
    • 0.56" super rate LED
  • Ratio setup
    • Digital setup in PT, CT ratio
    • Ratio range : 0.1~1999.9
    • Auto range in display reading to primary scale
  • Response time
    • Sample rate 1 of per sec typically
  • Input burden
    • 0.1 VA maximum
  • Input over
    • UAF : current input
      • 3 * rating continuous            10 * rating 30 sec
      • 50 * rating 3 sec                    80 * rating 1 sec
    • UVF : Voltage input
      • Maximum continuous 750V rms, 1500V 30 sec
  • Dielectric strength
    • 2.5KV AC rms 1 minute, all terminals to case/li>
    • 2KV AC rms 1 minute common voltage, between input to power terminal
  • Surge test
    • ANSI/IEEE C37.90-1989, DIN-IEC 255-4 / 1977
    • IEC 801-4 / 1988
  • Impulse voltage
    • Impulse voltage 1.2 * 50us 5KV
    • Oscillating wave 0.5us~100KHz 4KV & 1MHz~0.25ms 4KV
  • Stability
    • Temperature range -10 to +55°C
    • Maximum : < 50ppm / °C
    • Long term stability < 0.2% drift maximum per year
  • Operating condition
    • Temperature range -10 to 55°C, 0~99% RH non-condensed
  • Storage
    • Temperature range -25 to 70°C, 20~99% RH non-condensed
  • Auxiliary power
    • AC / DC 30-250V < 3 watts, (40-70Hz for AC)